Question

a coil of copper wire is connected it a galvanometer what what happens if a bar magnet is

a. pushed into the coil with it's north pole entering first

b. held at the rest inside the coil

c. pulled out again​

Answer 1

Explanation:

By using Lenz's Law. When we induce a current in the coil, it becomes an electromagnet. ... When the north pole of our magnet is moving towards the left hand end of the coil, the induced current flows anticlockwise (as we look at the left hand end). This makes the left hand end of the coil into a north pole.